diff options
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/include/asm/Kbuild | 1 | ||||
| -rw-r--r-- | arch/m68k/include/asm/processor.h | 10 | ||||
| -rw-r--r-- | arch/m68k/include/asm/uaccess.h | 1 | ||||
| -rw-r--r-- | arch/m68k/include/asm/uaccess_mm.h | 18 | ||||
| -rw-r--r-- | arch/m68k/include/asm/uaccess_no.h | 19 | ||||
| -rw-r--r-- | arch/m68k/kernel/signal.c | 2 | ||||
| -rw-r--r-- | arch/m68k/kernel/traps.c | 9 | ||||
| -rw-r--r-- | arch/m68k/mm/fault.c | 2 |
8 files changed, 11 insertions, 51 deletions
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild index d4f9ccbfa85c..82005d2ff717 100644 --- a/arch/m68k/include/asm/Kbuild +++ b/arch/m68k/include/asm/Kbuild @@ -5,6 +5,7 @@ generic-y += device.h generic-y += emergency-restart.h generic-y += errno.h generic-y += exec.h +generic-y += extable.h generic-y += futex.h generic-y += hw_irq.h generic-y += ioctl.h diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h index f5f790c31bf8..77239e81379b 100644 --- a/arch/m68k/include/asm/processor.h +++ b/arch/m68k/include/asm/processor.h @@ -122,16 +122,6 @@ static inline void start_thread(struct pt_regs * regs, unsigned long pc, wrusp(usp); } -#ifdef CONFIG_MMU -extern int handle_kernel_fault(struct pt_regs *regs); -#else -static inline int handle_kernel_fault(struct pt_regs *regs) -{ - /* Any fault in kernel is fatal on non-mmu */ - return 0; -} -#endif - /* Forward declaration, a strange C thing */ struct task_struct; diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h index 3fadc4a93d97..67b3481d6020 100644 --- a/arch/m68k/include/asm/uaccess.h +++ b/arch/m68k/include/asm/uaccess.h @@ -4,6 +4,7 @@ #include <asm/uaccess_mm.h> #endif +#include <asm/extable.h> #ifdef CONFIG_CPU_HAS_NO_UNALIGNED #include <asm-generic/uaccess-unaligned.h> #else diff --git a/arch/m68k/include/asm/uaccess_mm.h b/arch/m68k/include/asm/uaccess_mm.h index 14054a4e4216..23be968a53fd 100644 --- a/arch/m68k/include/asm/uaccess_mm.h +++ b/arch/m68k/include/asm/uaccess_mm.h @@ -31,24 +31,6 @@ static inline int access_ok(int type, const void __user *addr, #define MOVES "move" #endif -/* - * The exception table consists of pairs of addresses: the first is the - * address of an instruction that is allowed to fault, and the second is - * the address at which the program should continue. No registers are - * modified, so it is entirely up to the continuation code to figure out - * what to do. - * - * All the routines below use bits of fixup code that are out of line - * with the main instruction path. This means when everything is well, - * we don't even have to jump over them. Further, they do not intrude - * on our cache or tlb entries. - */ - -struct exception_table_entry -{ - unsigned long insn, fixup; -}; - extern int __put_user_bad(void); extern int __get_user_bad(void); diff --git a/arch/m68k/include/asm/uaccess_no.h b/arch/m68k/include/asm/uaccess_no.h index e77ce66c14d5..3f7f54d5134c 100644 --- a/arch/m68k/include/asm/uaccess_no.h +++ b/arch/m68k/include/asm/uaccess_no.h @@ -23,25 +23,6 @@ static inline int _access_ok(unsigned long addr, unsigned long size) } /* - * The exception table consists of pairs of addresses: the first is the - * address of an instruction that is allowed to fault, and the second is - * the address at which the program should continue. No registers are - * modified, so it is entirely up to the continuation code to figure out - * what to do. - * - * All the routines below use bits of fixup code that are out of line - * with the main instruction path. This means when everything is well, - * we don't even have to jump over them. Further, they do not intrude - * on our cache or tlb entries. - */ - -struct exception_table_entry -{ - unsigned long insn, fixup; -}; - - -/* * These are the main single-value transfer routines. They automatically * use the right size if we just have the right pointer type. */ diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c index 093b7c42fb85..6f945bb5ffbd 100644 --- a/arch/m68k/kernel/signal.c +++ b/arch/m68k/kernel/signal.c @@ -88,7 +88,7 @@ static inline int frame_extra_sizes(int f) return frame_size_change[f]; } -int handle_kernel_fault(struct pt_regs *regs) +int fixup_exception(struct pt_regs *regs) { const struct exception_table_entry *fixup; struct pt_regs *tregs; diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c index a926d2c88898..c1cc4e99aa94 100644 --- a/arch/m68k/kernel/traps.c +++ b/arch/m68k/kernel/traps.c @@ -1016,8 +1016,13 @@ asmlinkage void trap_c(struct frame *fp) /* traced a trapping instruction on a 68020/30, * real exception will be executed afterwards. */ - } else if (!handle_kernel_fault(&fp->ptregs)) - bad_super_trap(fp); + return; + } +#ifdef CONFIG_MMU + if (fixup_exception(&fp->ptregs)) + return; +#endif + bad_super_trap(fp); return; } diff --git a/arch/m68k/mm/fault.c b/arch/m68k/mm/fault.c index bd66a0b20c6b..2795e4ca09d7 100644 --- a/arch/m68k/mm/fault.c +++ b/arch/m68k/mm/fault.c @@ -32,7 +32,7 @@ int send_fault_sig(struct pt_regs *regs) force_sig_info(siginfo.si_signo, &siginfo, current); } else { - if (handle_kernel_fault(regs)) + if (fixup_exception(regs)) return -1; //if (siginfo.si_signo == SIGBUS) |